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Home
Terahertz Quantum Sensing.

Home
Terahertz Quantum Sensing.

Related Experiment Video

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Terahertz quantum sensing.

Mirco Kutas^1,2, Björn Haase^1,2, Patricia Bickert¹

¹Fraunhofer Institute for Industrial Mathematics ITWM, Fraunhofer-Platz 1, 67663 Kaiserslautern, Germany.

Science Advances

|March 24, 2020

View abstract on PubMed

Summary

This summary is machine-generated.

Quantum sensing enables terahertz (THz) measurements by converting THz photon information to visible light. This breakthrough allows for non-destructive layer thickness measurements, paving the way for industrial quantum sensing applications.

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Area of Science:

Quantum optics
Terahertz (THz) technology
Metrology

Background:

Photon detection is challenging in certain spectral regions, like terahertz (THz) frequencies.
Existing THz detection methods require complex setups like coherent detection or cryogenic cooling.
Quantum sensing offers a novel approach to overcome these limitations.

Purpose of the Study:

To demonstrate quantum sensing in the terahertz frequency range.
To enable non-destructive layer thickness measurements using THz radiation.
To explore the potential of quantum sensing for industrial applications.

Main Methods:

Utilizing biphoton correlations to transfer spectral information from the THz range to the visible range.
Interacting THz photons with a sample in free space.

Detecting visible photons to obtain sample information.

Main Results:

Successfully demonstrated quantum sensing in the THz frequency range.
Achieved layer thickness measurements using THz photons and biphoton interference.
Obtained sample thickness information via the detection of visible photons.

Conclusions:

This work presents the first demonstration of quantum sensing in the THz frequency range.
The developed method allows for non-destructive layer thickness measurements, relevant for industry.
This research is a foundational step towards industrial quantum sensing applications.